package com.xr.common.exception;

import com.xr.common.axios.AxiosEnum;
import com.xr.common.axios.AxiosResult;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 自定义全局异常处理器
 */
@RestControllerAdvice
public class MyGlobalExceptionHandler {

    /**
     * 处理系统未知异常
     */
    @ExceptionHandler(Exception.class)
    public AxiosResult handle(Exception e) {
        e.printStackTrace();
        return AxiosResult.error(AxiosEnum.UNKNOWN_ERROR);
    }

    /**
     * 处理运行时发生的或主动抛出的其他自定义异常（继承于RuntimeException）
     */
    @ExceptionHandler(MyCustomException.class)
    public AxiosResult handle(MyCustomException e) {
        e.printStackTrace();
        return AxiosResult.error(AxiosEnum.UNKNOWN_ERROR);
    }

    /**
     * 处理字段值重复(违背唯一约束条件)的SQL异常
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public AxiosResult handle(SQLIntegrityConstraintViolationException e) {
        e.printStackTrace();
        if (e.getMessage().contains("Duplicate entry")) {
            return AxiosResult.error(AxiosEnum.UNIQUE_ERROR);
        }
        return AxiosResult.error(AxiosEnum.UNKNOWN_ERROR);
    }

    /**
     * 处理空指针异常
     */
    @ExceptionHandler(NullPointerException.class)
    public AxiosResult handle(NullPointerException e) {
        e.printStackTrace();
        return AxiosResult.error(AxiosEnum.NULL_POINTER_ERROR);
    }

}
